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what happen "when Dyn11 is parallel operation with Dyn1"?
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Answer Posted / dubai
I agree with murali.
Transformer having -30˚ angle (here DYn 11) can be
paralleled with +30˚ (here DYn 1) angle by reversing the
phase sequence of both primary & secondary terminals of one
of the transformers eliminating phase angle errors.
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